public void IterationThroughCollection_SingleIteratorAndSeveralIterations_IteratesEndlessly()
{
int iterationAmount = 3;
var source = Enumerable.Range(0, sourceLength).ToList();
var enumerable = new RoundRobinCollectionEnumerable <int>(source);
List <int> expected = new List <int>();
for (int i = 0; i < iterationAmount; i++)
{
expected.AddRange(source);
}
;
var iter = enumerable.GetEnumerator();
var actual = Enumerable.Range(0, sourceLength * iterationAmount)
.Select(i =>
{
iter.MoveNext();
return(iter.Current);
}).ToList();
Assert.AreEqual(expected, actual);
}
public void IterationThroughCollection_SeveralIterators_IteratesEndlessly()
{
int iteratorsAmount = 3;
var source = Enumerable.Range(0, sourceLength).ToList();
var enumerable = new RoundRobinCollectionEnumerable <int>(source);
IList <IEnumerator <int> > iterators = Enumerable.Range(0, iteratorsAmount)
.Select(i => enumerable.GetEnumerator()).ToList();
List <int> expected = new List <int>();
for (int i = 0; i < iteratorsAmount; i++)
{
expected.AddRange(source);
}
var actual = new List <int>();
for (int i = 0; i < sourceLength; i++)
{
foreach (var iter in iterators)
{
iter.MoveNext();
actual.Add(iter.Current);
}
}
Assert.AreEqual(expected, actual);
}
public void IterationCollection_SingleIteratorAndSingleIteration_IteratesWell()
{
var source = Enumerable.Range(0, sourceLength).ToList();
IEnumerator <int> iter = new RoundRobinCollectionEnumerable <int>(source);
var result = Enumerable.Range(0, sourceLength)
.Select(i =>
{
iter.MoveNext();
return(iter.Current);
}).ToList();
Assert.AreEqual(source, result);
}
